Kałęczyn [kaˈwɛnt͡ʂɨn] is a village in the administrative district of Gmina Stoczek, within Węgrów County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 kilometres (4 mi) south-east of Stoczek, 14 km (9 mi) north of Węgrów, and 74 km (46 mi) north-east of Warsaw.